Watch casing



FIG. 1 is a perspective view of the watch casing according to my design;

FIG. 2 is a top plan view of the watch casing according to my design;

FIG. 3 is a bottom plan view of the watch casing according to my design;

FIG. 4 is a right plan view of the watch casing according to my design;

FIG. 5 is a left plan view of the watch casing according to my design;

FIG. 6 is a front plan view of the watch casing according to my design;and,

FIG. 7 is a back plan view of the watch casing according to my design.

The broken line showing of FIGS. 1-3 of the watch casing is forillustrative purposes only and forms no part of the claimed design.

I claim the ornamental design for a watch casing, as shown anddescribed.